I have 2 tulip poplar trees. Trunks are 3 feet in diameter. Approximately 1/2...

Asked August 10, 2019, 5:28 PM EDT

I have 2 tulip poplar trees. Trunks are 3 feet in diameter. Approximately 1/2 of the leaves are yellowing. The amount of dropped brown leaves is very high. I have blown leaves once because there were too many to cut the grass. The attached picture is the accumulation in 1 week. Do the trees have a disease? Are the leaves dropping normal? If so then perhaps it is a heavier year. There are no other poplar trees in the neighbor hood to compare. Other trees' leaves are green and not dropping leaves. Thank you, Ken Downs

Warren County Ohio trees and shrubs tulip poplar tulip tree trees

1 Response

Thank you for your question. The Tulip Poplar or Tulip Tree is famous for dropping it’s leaves when it is even the slightest stressed due to environmental conditions such as less water or a fungal disease which is common to these trees but pose no lasting harm.

Unless the tree is very young treatments with a fungicide is not practical or necessary.

At this point it appears that your tree is acting normally and will produce more leaves although not in abundance until next year.

I have listed a few sites below which may help you to understand this better. Also your County OSU Extension is listed if you wish to contact them for advice. Thank you again.

Warren County OSU Extension Office

320 E Silver St

Lebanon, Ohio 45036

Phone: 513-695-1311

https://extension.psu.edu/tulip-poplar-diseases

https://wilkes.ces.ncsu.edu/2015/08/have-your-trees-started-dropping-their-leaves-already/

https://newgarden.com/notes/summer-yellowing-leaf-drop-on-trees

http://hort.ufl.edu/trees/LIRTULA.pdf